MuseScore: view and play sheet music

Even if some musicians only use a laptop to create music, for the most part, if you want to create real music you will need to know the notes and how to write them properly. While writing them on a sheet of special paper is nice, you can also use an application such as MuseScore.
 
The main feature of the app is the ability to find and play music MuseScore.com, which also happens to have a huge sheet music collection. Users can view and play sheet music online and offline, and it’s possible to upload your own sheets.
 
It’s also possible to set the tempo, change instruments and specific volumes, and even use a metronome feature.